I think Flora is a beautiful name. Personally, the unfortunate uses of the noun would stop me using it. That said, the more popular the name becomes, the more people will disassociate it with those uses.

Hmm, I know a Flora who now goes by her middle name now due to the teasing. The 'spreads easily' became too much for her at secondary school. I know that children will pick up on all sorts of things when bullying others but why would you give them an obvious reason to make your child the target of bullies?